What's Wrong With This Concrete Finish? - Building & Construction - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 09-02-2011, 08:09 PM   #1
Newbie
 
Join Date: Sep 2011
Posts: 5
Rewards Points: 10
Default

What's wrong with this concrete finish?


Hi all, I new and hoping I'm putting this post in the correct place.

I had all new concrete poured for a new driveway and walkways in my front yard about 3 months ago. I'm wanting to seal it before winter but am concerned by the inconsistant look on the surface and don't want to "lock-it-in" until I understand and am able to improve it, if I can. Basically, it's colored concrete with off-colored color powder applied while it was wet. Some of it is stamped with troweled bands. The contractor taped plastic over the bands so the powder would only get into the stamped areas. I think they removed the plast too soon as you can see broom marks on the bands in places.

My question is this - I've tried removing the broom marks/powder from those areas with an electric power washer which did almost nothing. Is there any way of getting this stuff off of those areas where they shouldn't be, maybe a more powerful power washer or etching acid? Any ideas?

I'll try including a couple of pictures, I hope they upload ok.

Thanks
Attached Images
 

Advertisement

Joepublic is offline   Reply With Quote
Old 09-02-2011, 08:14 PM   #2
Newbie
 
Join Date: Sep 2011
Posts: 5
Rewards Points: 10
Default

What's wrong with this concrete finish?


I thought I would include an additional photo,
Attached Images
 

Advertisement

Joepublic is offline   Reply With Quote
Old 09-02-2011, 09:01 PM   #3
DIY staff

 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 22,326
Rewards Points: 3,290
Default

What's wrong with this concrete finish?


Did you contact the installer?

There are several concrete people here---One should be able to help.
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
Old 09-02-2011, 10:50 PM   #4
Newbie
 
Join Date: Sep 2011
Posts: 5
Rewards Points: 10
Default

What's wrong with this concrete finish?


I tried to get the contractor to come out and evaluate the finish but to no avail. I planned on sealing it myself once I figure out what to do with the concrete surface.

BTW I'm out in the San Jose area of Northern California.

Thanks
Joepublic is offline   Reply With Quote
Old 09-03-2011, 04:47 AM   #5
jpc
jc
 
Join Date: Dec 2010
Location: chesapeake virginia
Posts: 185
Rewards Points: 158
Send a message via Yahoo to jpc
Default

What's wrong with this concrete finish?


you could water down some hydrocloric, or muriatic acid, and acid etch that little bit off, dont let it sit on the concrete too long, and clean it off with a pressure washer, not a huge powerful one, u want the acid to do the work, the pressure washer is only used to clean it all of so it doesnt continue to eat, good luck
jpc is offline   Reply With Quote
Old 09-03-2011, 10:31 AM   #6
Concrete & Masonry
 
Join Date: Nov 2008
Location: Wisconsin
Posts: 2,796
Rewards Points: 2,144
Default

What's wrong with this concrete finish?


Two questions:

Has it not been sealed yet by the contractor?

How does it look when it's wet.



I don't think you're going to be able to get rid of any broom marks in it w/o taking off most/all the surface color in that area.
jomama45 is offline   Reply With Quote
Old 09-03-2011, 01:01 PM   #7
Newbie
 
Join Date: Sep 2011
Posts: 5
Rewards Points: 10
Default

What's wrong with this concrete finish?


Thanks for the responses. It looks just as bad when wet. I remember the look was supposed to be mottled around the stamped areas but they put so much powder on, they ended up changing the color altogether. It's now mono colored to the color of the powder, but when they swept off the excess powder, they did it after they had removed the protective plastic from the bands and before the concrete had a chance to set more, thus the broom marks from the powder on some of my bands.

I think I'll try a muratic acid solution on a small corner of a walkway on the side of my house that isn't seen much.

Thanks again for the suggestions
Joepublic is offline   Reply With Quote
The Following User Says Thank You to Joepublic For This Useful Post:
oh'mike (09-03-2011)
Old 09-03-2011, 07:20 PM   #8
Newbie
 
Join Date: Sep 2011
Posts: 5
Rewards Points: 10
Default

What's wrong with this concrete finish?


Actually I found a bottle of concrete acid etch in my garage/shop cupboard (hydrochloric and Phosphoric acid based). I applied it to a portion of concrete band kinda mottled with broomed-on powdered color. I followed then instructions applying it full strength and scrubbing it with a stiff brush. I then waited a few minutes and washed it off with a power washer.

After it dried it looked worse. All the acid did was to desolve the powder a little and etch it into the rest of the concrete making it mono colored to the color of the powder.

I think I'm stuck with this concrete look, ugh!
Joepublic is offline   Reply With Quote
Old 09-04-2011, 08:31 AM   #9
Newbie
 
Join Date: Sep 2011
Posts: 4
Rewards Points: 10
Default

What's wrong with this concrete finish?


Just clean it and apply a Epoxy based product (NOT ONE FROM THE CHAIN STORE ) I have an industrial epoxy on a slab of mine that forklift
works on daily and is holding up, I know the product exist just dont know the name

Coconut

Advertisement

coconut sunrise is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Seal Peel and Stick Tiles? Echo1 Flooring 21 06-22-2012 10:07 PM
High Rise Building methods - US versus Oz - Steel versus Concrete Jado Off Topic 17 09-15-2011 09:47 PM
furring strips or 2x4s against concrete basement wall? denemante Building & Construction 15 01-28-2011 04:49 PM
Concrete Contractor and Masonry Contractor made a huge mistake homeowner12 Building & Construction 19 07-07-2010 10:37 PM
Changing poly type during hardwood floor refinishing redpen Flooring 17 02-03-2009 07:11 PM




Top of Page | View New Posts